[7150f00f] | 1 | /*-------------------------------------------------------------------------+ |
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| 2 | | This file contains the PC386 BSP startup package. It includes application, |
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| 3 | | board, and monitor specific initialization and configuration. The generic CPU |
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[6128a4a] | 4 | | dependent initialization has been performed before this routine is invoked. |
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[7150f00f] | 5 | +--------------------------------------------------------------------------+ |
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| 6 | | (C) Copyright 1997 - |
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| 7 | | - NavIST Group - Real-Time Distributed Systems and Industrial Automation |
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| 8 | | |
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| 9 | | http://pandora.ist.utl.pt |
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| 10 | | |
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| 11 | | Instituto Superior Tecnico * Lisboa * PORTUGAL |
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| 12 | +--------------------------------------------------------------------------+ |
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| 13 | | Disclaimer: |
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| 14 | | |
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| 15 | | This file is provided "AS IS" without warranty of any kind, either |
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| 16 | | expressed or implied. |
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| 17 | +--------------------------------------------------------------------------+ |
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| 18 | | This code is based on: |
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| 19 | | bspstart.c,v 1.8 1996/05/28 13:12:40 joel Exp - go32 BSP |
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| 20 | | With the following copyright notice: |
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| 21 | | ************************************************************************** |
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[ef37cb6] | 22 | | * COPYRIGHT (c) 1989-2008. |
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[6f9c75c3] | 23 | | * On-Line Applications Research Corporation (OAR). |
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| 24 | | * |
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| 25 | | * The license and distribution terms for this file may be |
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| 26 | | * found in found in the file LICENSE in this distribution or at |
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[af2abc9e] | 27 | | * http://www.rtems.com/license/LICENSE. |
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[7150f00f] | 28 | | ************************************************************************** |
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[6f9c75c3] | 29 | | |
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| 30 | | $Id$ |
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[7150f00f] | 31 | +--------------------------------------------------------------------------*/ |
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| 32 | |
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| 33 | #include <bsp.h> |
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[71319f77] | 34 | #include <rtems/pci.h> |
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[ab0df696] | 35 | #include <libcpu/cpuModel.h> |
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| 36 | |
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[6128a4a] | 37 | /* |
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[ef37cb6] | 38 | * External routines |
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[662c157] | 39 | */ |
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[ef37cb6] | 40 | extern void Calibrate_loop_1ms(void); |
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[8a496e46] | 41 | extern void rtems_irq_mngt_init(void); |
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[ef37cb6] | 42 | extern void bsp_size_memory(void); |
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[e3a1d425] | 43 | |
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[7150f00f] | 44 | /*-------------------------------------------------------------------------+ |
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[e2a2ec60] | 45 | | Function: bsp_start |
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| 46 | | Description: Called before main is invoked. |
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[7150f00f] | 47 | | Global Variables: None. |
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| 48 | | Arguments: None. |
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[6128a4a] | 49 | | Returns: Nothing. |
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[7150f00f] | 50 | +--------------------------------------------------------------------------*/ |
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[45544f0] | 51 | void bsp_start_default( void ) |
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[7150f00f] | 52 | { |
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[71319f77] | 53 | int pci_init_retval; |
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[6128a4a] | 54 | |
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[ef37cb6] | 55 | /* |
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| 56 | * We need to determine how much memory there is in the system. |
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| 57 | */ |
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| 58 | bsp_size_memory(); |
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| 59 | |
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[eff217e] | 60 | /* |
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| 61 | * Calibrate variable for 1ms-loop (see timer.c) |
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| 62 | */ |
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| 63 | Calibrate_loop_1ms(); |
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[8a496e46] | 64 | |
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[67a2288] | 65 | /* |
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[eb562f2] | 66 | * Init rtems interrupt management |
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[67a2288] | 67 | */ |
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| 68 | rtems_irq_mngt_init(); |
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[45550867] | 69 | |
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[eb562f2] | 70 | /* |
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| 71 | * Init rtems exceptions management |
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| 72 | */ |
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| 73 | rtems_exception_init_mngt(); |
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[71319f77] | 74 | |
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| 75 | /* |
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| 76 | * init PCI Bios interface... |
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| 77 | */ |
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| 78 | pci_init_retval = pci_initialize(); |
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| 79 | if (pci_init_retval != PCIB_ERR_SUCCESS) { |
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| 80 | printk("PCI bus: could not initialize PCI BIOS interface\n"); |
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| 81 | } |
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[1c5ebc5] | 82 | |
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[45550867] | 83 | bsp_ide_cmdline_init(); |
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[1c5ebc5] | 84 | |
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[e2a2ec60] | 85 | } /* bsp_start */ |
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[45544f0] | 86 | |
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| 87 | /* |
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| 88 | * By making this a weak alias for bsp_start_default, a brave soul |
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| 89 | * can override the actual bsp_start routine used. |
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| 90 | */ |
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| 91 | |
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| 92 | void bsp_start (void) __attribute__ ((weak, alias("bsp_start_default"))); |
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